AT&T Switching Center

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AT&T Madison Complex Tandem Office
PacBellTower01.jpg
Alternative names AT&T Switching Center
PacBell Tower
Pacific Telephone Tower
SBC Building
SBC Communications Switching Station
General information
Type Commercial offices
Switching station
Location 420 South Grand Avenue
Los Angeles, California
Coordinates 34°03′03″N 118°15′09″W / 34.050750°N 118.252614°W / 34.050750; -118.252614Coordinates: 34°03′03″N 118°15′09″W / 34.050750°N 118.252614°W / 34.050750; -118.252614
Completed 1961
Owner AT&T
Height
Antenna spire 136.55 m (448.0 ft)
Roof 79 m (259 ft)
Technical details
Floor count 17
Design and construction
Architect John B. Parkinson
Donald D. Parkinson
References
[1][2][3][4][5]

The AT&T Madison Complex Tandem Office is a 17-story, 79 m (259 ft) skyscraper in Los Angeles, California, completed in 1961. With its microwave tower, used through 1993, bringing the overall height to 137 m (449 ft), it is the 29th tallest building in Los Angeles. The building serves 1.3 million phone lines in area code 213, and other Los Angeles area codes, for foreign long distance calling.

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